Fountain pen cap



Sept. 8, 1931. L. J. M'os'r FOUNTAIN PEN CAP Filed nine 4, 1930 PatentedSept. 8, 1931 UNITED'STATES PATENT OFFICE A LUCIFER J. MOST, or KELARNY,NEW JERSEY, AssIGNOR To ivrABrn TODD & co., or NEW YORK COUNTY, NEW YORKFOUNTAIN PEN 'CAP Application filed June 4, 1930. Serial No. 459,169.

My invention relates to fountainA pen caps used with combinationsofmechanical pencils and fountain pens, and is a modification of thestructure disclosed in my application,

4I5 Serial No. 428,590, iiled February 15, 1930.

The object of the invention is to incorporate in the pen cap, the leadmagazine and the eraser, so as to permit the use of a unitary barrelaccommodating both the pen and l pencil mechanisms.

Another object of the invention is to provide a pen cap having a nib capWithin the pen cap, spaced therefrom and forming therewith an annularlead space accessible from 21' the normally closed end of the pen cap.

In the appended drawings forming part of this application, Figure 1 is avertical section through a cap on line1-1 Figure 2, showing anembodiment of my invention, a

portion of the pen and nib being shown in dash and' dot line.

Figure 2 is an enlarged top plan of the cap with the tip cap and rubberremoved.

Figure 3 is an enlarged cross-section on V2:5 line 3 3, Figure 1, and

Figure 4 is a top plan on the open end of the cap.

In the drawings, 10 is a tube of material suitable for a pen cap, oneend of whichtube has a threaded recess for a threaded nipple 11. Aport-ion of the nipple projects above the end of the tube to receive atip cap 12 which closes this end of the tube and therewith forms theupper end of the pen cap. 'i The nipple 11 has a bottom 13, in whichannular slots 14 are punched out just inside of its inner wall. Thebottom 13 has also a central aperture 15.

A trunnion 18 of a plug 17 engages the 9. aperture 15, the diameter ofthe plug being such that the annular slots 14 remain unobstructedthereby. rI`he plug 17 seals the upper end of a sleeve 16 so as toprotectthe edge of the tube. The lower end of the sleeve 5. 16 isengaged by a'ring 19 recessed to form an abutment for the end of thetube, said ring i 19 being threaded into the tube 10, and whereby itmaybe screwed tight within said tube against the bottom 13 of the nipple11. The trunnion 18 and the ring 19 centering the sleeve -16 within thetube-10, provide between said sleeve and tube an annular space 204Whichis the magazine for frlead, accessib le `4from the circular slots14 in the bottom 13 of-the nipple 11.V p i vTo provide suif'lcientannular space 20 `for the leads without increasing the size of the tube10, Yforming the cap of thepen, While providing a suiiiciently largeVnib cap by meansA of the sleeve 16,it becomes necessary y to make saidsleeve 16 out of metal. To prevent the inner surface of themetalpsurface from ink corrosion, it is veither coated or plated. Iprefer to gold plate, buta composition o-f rubber maybe deposited on thesurface of the sleeve exposed to ink corrosion. The ring 19 and the plug17 are made of hard rubber, which are by their nature immune tocorrosion by ink. y

The circular slots 14 are normally fclosed by a removable eraser 21,yieldpingly positioned in the nipple 11 and normally housed in the tipcap 12.

I claim: Y

1. A `fountain pen cap comprising a tube, a nipple in one end thereof, atip cap Aremovably connected to the nipple, a sleeve within the tube ofa diameter to provide an annular lead space Vbetween the tube andsleeve, a plug closing one end of the sleeve, said nipple having abottom with annular slots there,- in and a central aperture, said plughaving a trunnion for engaging the central aperture to center the sleevewithin the tube and register the annular slots in the bottom of thenipple with the annular space formed by the sleeve and tube, and a ringfitted from the open end of the tube, engaging the end of the sleeve forcentering said end of the sleeve in the tube and for locking the sleeveand plug against the bottom of the nipple.

2. A fountain pen cap comprising a tube, a nipple in one end of thetube, a tip cap enraging the nipple and closing the tube, a sleevewithin the tube of a diameter to provide an annular lead space betweenthe tube and sleeve. a plug closing,- one end of the sleeve, said nipplehaving a bottom with a central aperture therein, said plug having atrunnion for engaging the aperture of the bottom to center the end ofthe sleeve in the tube, said bottom having means Igiving access to theannular space formed by the sleeve and tube, and a ring threaded throughthe open end of the tube and engaging the other end of the sleeve forlocking said sleeve and plug against the bottom of the nipple.

3. A fountain pen cap comprising,r a tube,

4a, nipple in one end of the tube, a tin cap for the nipple closing' theend of the tube, a pen nib cap in said tube forming therewith an annularlead space` and a ring at the open end ofl the nib cap engaging the tubeand closing the annular space between the nib cap andthe tube, saidnipple h avinLT a bottom with a central aperture therein, and annularslots tbroufrh which access mav be had to the annular lead space formedb'v the nib cap and tube. said nib cap having a central trunnion forengaging the central aperture of the nipple bottom.

4. A fountain pen cap comprising' a tube` a nipple in one end of saidtube. a tip cap for said nipple. a metallic sleeve within the tube` of adiameter to provide annular lead space between the tube and sleeve. ahard rubber nl uqf engaging one end of the sleeve. said nipple and plug'having centering means for nronerlv spa eine the end of tbe sleeve atthe plus in the tube.- said nipple having means rfivinsr access to theannular space formed b v the sleeve and tube. anda ring* of hard rubberthreaded into tbe tube and enga Qing the other end of the sleeve` saidring locking said sleeve with tbe uluor aoainst tbe nippleV within thetuber said metallic sleeve having' its inner peripberv coated to renderit immune to ink corrosion.

5. A fountain pen can comprisingr a tube, a nipple in one end of thetube` a tin cap for said nipple closing the end of the tube, a metallicsleeve within the tube of a diameter to provide an annular load snacebetween the tube and sleeve* a hard rubber plug engagingl one end of thesleeve and protecting the edge thereof, said plug and nipple havingcentering: means for properly spacing the sleeve within the tube, and ahard rubber ring` threaded through the open end of the tube and engagingthe sleeve to protect its edge andy locking said sleeve and plug againstthe nipple within the tube, said nipple having means giving access tothe annular space formed by the sleeve and tube, said sleeve beingplated to protect it from ink Corrosion.

6. A fountain pen cap comprising a tube, a tip cap at upper end of saidtube, a sleeve within the tube, of a diameter to provide lead spacebetween the tube and sleeve, and means for locking said sleeve at theends thereof in the tube, the locking means at the upper end of the tubebeing adapted to provide access to the lead space from the upper end ofthe tube, said sleeve being protected from corrosion caused by ink.

LUCIFER J. MOST.

